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Commit e97d0fac authored by Mark F. Brown's avatar Mark F. Brown Committed by Eric Miao
Browse files

ARM: mmp: refactored 5V regulator support using fixed-regulator 



Signed-off-by: default avatarMark F. Brown <mark.brown314@gmail.com>
Reviewed-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarEric Miao <eric.y.miao@gmail.com>
parent a8fb0b55

arch/arm/mach-mmp/brownstone.c

+38 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/gpio.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/max8649.h>

#include <linux/regulator/fixed.h>

#include <linux/mfd/max8925.h>



#include <asm/mach-types.h>
@@ -30,6 +31,8 @@ 


#define BROWNSTONE_NR_IRQS	(IRQ_BOARD_START + 40)



#define GPIO_5V_ENABLE		(89)



static unsigned long brownstone_pin_config[] __initdata = {

	/* UART1 */

	GPIO29_UART1_RXD,
@@ -97,6 +100,9 @@ static unsigned long brownstone_pin_config[] __initdata = { 
	GPIO111_MMC3_DAT0 | MFP_PULL_HIGH,

	GPIO112_MMC3_CMD | MFP_PULL_HIGH,

	GPIO151_MMC3_CLK,



	/* 5V regulator */

	GPIO89_GPIO,

};



static struct regulator_consumer_supply max8649_supply[] = {
@@ -123,6 +129,35 @@ static struct max8649_platform_data brownstone_max8649_info = { 
	.regulator	= &max8649_init_data,

};



static struct regulator_consumer_supply brownstone_v_5vp_supplies[] = {

	REGULATOR_SUPPLY("v_5vp", NULL),

};



static struct regulator_init_data brownstone_v_5vp_data = {

	.constraints	= {

		.valid_ops_mask		= REGULATOR_CHANGE_STATUS,

	},

	.num_consumer_supplies	= ARRAY_SIZE(brownstone_v_5vp_supplies),

	.consumer_supplies	= brownstone_v_5vp_supplies,

};



static struct fixed_voltage_config brownstone_v_5vp = {

	.supply_name		= "v_5vp",

	.microvolts		= 5000000,

	.gpio			= GPIO_5V_ENABLE,

	.enable_high		= 1,

	.enabled_at_boot	= 1,

	.init_data		= &brownstone_v_5vp_data,

};



static struct platform_device brownstone_v_5vp_device = {

	.name		= "reg-fixed-voltage",

	.id		= 1,

	.dev = {

		.platform_data = &brownstone_v_5vp,

	},

};



static struct max8925_platform_data brownstone_max8925_info = {

	.irq_base		= IRQ_BOARD_START,

};
@@ -154,6 +189,9 @@ static void __init brownstone_init(void) 
	mmp2_add_uart(3);

	mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));

	mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */



	/* enable 5v regulator */

	platform_device_register(&brownstone_v_5vp_device);

}



MACHINE_START(BROWNSTONE, "Brownstone Development Platform")